All articles tagged with #metalenses
Researchers have developed layered multicolor metalenses using stacked metamaterials that can focus multiple wavelengths simultaneously, overcoming the limitations of single-layer lenses. This innovative design is easy to manufacture, polarization insensitive, and scalable, with potential applications in compact, high-performance optical devices for drones, smartphones, and other portable technologies.
ETH Zurich researchers have developed ultra-thin metalenses made from lithium niobate that can convert infrared light into visible light by halving its wavelength, using nanostructures and nonlinear optical effects, with potential applications in security, imaging, and electronics.
Researchers have developed a new method for creating high-numerical aperture achromatic metalenses using 3D printing technology. By employing topology optimization and full wavelength simulations, the team designed multilayer lenses that can focus light efficiently across a broad range of wavelengths, overcoming the traditional trade-off between numerical aperture and bandwidth. These lenses are polarization-insensitive and show promise for a variety of applications, including imaging systems in fields like medicine and quantum technologies. The study, published in Science Advances, demonstrates the potential of 3D-printed optics to achieve high performance in compact and multifunctional devices.
Researchers have developed a novel approach for creating broadband achromatic and polarization-insensitive metalenses (BAPIML) that can enhance image quality. Metalenses, which are ultrathin lenses made from nanomaterials, have the advantage of being smaller and easier to produce than traditional lenses. However, they are susceptible to chromatic aberration, which reduces image quality. The researchers used the Rayleigh criterion for spot resolution to design two complementary metalenses that merge bright spots into a single focused spot. By carefully adjusting the parameters, they were able to counteract chromatic aberrations and focus light of different wavelengths at the same point. This new method opens doors to improved imaging and optical applications.
Apple analyst Ming-Chi Kuo suggests that the Apple Glasses launch could come as early as 2026 or 2027, but the emphasis of the report is that Apple Glasses won’t be mass-produced before these dates. Apple Glasses are a wearable that looks somewhat like conventional prescription eyeglasses, and that can overlay augmented reality content like Apple Maps directions and notifications. Kuo also expects to see Apple start making the switch to metalenses next year for the Face ID array.